The L6561 is a power factor corrector from STMicroelectronics described as an improved version of the L6560 standard Power Factor Corrector. It operates in transition mode, includes a multiplier for wide input voltage range applications, a disable function on the ZCD pin, and a totem-pole output stage for driving a Power MOS or IGBT.
The document gives features, absolute maximum ratings, thermal data, pin descriptions and electrical characteristics for the DIP-8 and SO-8 packages. It also explains overvoltage protection and the disable function, and includes typical application circuits plus the EVAL6561-80 demo board schematic and evaluation results.
| Package | DIP-8 and SO-8 |
|---|---|
| Start-up current | 50 µA typical |
| Operating supply current | 4 mA typical |
| Output current | ±400 mA totem pole |
| Internal reference voltage precision | 1% at Tj = 25 °C |
| Supply voltage operating range | 11 V to 18 V after turn-on |
| Junction temperature operating range | -40 °C to 150 °C |
| Power dissipation | 1 W (DIP-8), 0.65 W (SO-8) at Tamb = 50 °C |
The L6561 is described as an improved version of the L6560 standard Power Factor Corrector and is fully compatible with the standard version.
Grounding the ZCD pin disables the device; releasing the ZCD pin lets the internal start-up timer restart the device.
It can drive a Power MOS or IGBT with source and sink currents of ±400 mA.
The L6561 is offered in DIP-8 and SO-8 packages.